EP 1495472 A1 20050112 - METHOD FOR MODIFICATION OF DATA ON A MEMORY CARD ON A TRANSACTION
Title (en)
METHOD FOR MODIFICATION OF DATA ON A MEMORY CARD ON A TRANSACTION
Title (de)
VERFAHREN ZUR MODIFIKATION VON DATEN AUF EINER SPEICHERKARTE BEI EINER TRANSAKTION
Title (fr)
PROCEDE DE MODIFICATION DES DONNEES D UNE CARTE A MEMOIRE LORS D UNE TRANSACTION
Publication
Application
Priority
- FR 0301205 W 20030415
- FR 0204705 A 20020416
Abstract (en)
[origin: US2005071539A1] A method for modification of data in a card transaction system having a memory card and a reader for reading the card. The card has a first memory (RAM) and a second memory (EEPROM) with data locations occupied by data recordings. Each transaction involves the modification of at least one of the data locations or the addition of a new recording. The method reads the address of a free location from a previous control register located in a first fixed location in the EEPROM memory, writes the new modified recording or addition in the free location, repeat the steps for each new recording to be modified or added, and writes in a second fixed location in the EEPROM memory a new control register containing the addresses of free locations within the EEPROM memory to use in the next transaction.
IPC 1-7
IPC 8 full level
G06K 17/00 (2006.01); G07F 7/10 (2006.01); G11C 16/10 (2006.01)
CPC (source: EP KR US)
G06K 17/00 (2013.01 - KR); G06Q 20/341 (2013.01 - EP US); G06Q 20/3552 (2013.01 - EP US); G07F 7/082 (2013.01 - EP US); G07F 7/10 (2013.01 - KR); G07F 7/1008 (2013.01 - EP US); G11C 16/102 (2013.01 - EP US)
Citation (search report)
See references of WO 03088262A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
US 2005071539 A1 20050331; US 7146472 B2 20061205; AU 2003262197 A1 20031027; BR 0304525 A 20040727; CA 2452672 A1 20031023; CN 1533575 A 20040929; CN 1533575 B 20100512; EP 1495472 A1 20050112; FR 2838536 A1 20031017; FR 2838536 B1 20050624; HK 1069668 A1 20050527; IL 159335 A0 20040601; JP 2005524133 A 20050811; JP 4211890 B2 20090121; KR 100977640 B1 20100824; KR 20040096762 A 20041117; MX PA03011636 A 20040701; TW 200307201 A 20031201; TW I291617 B 20071221; WO 03088262 A1 20031023
DOCDB simple family (application)
US 48358504 A 20040109; AU 2003262197 A 20030415; BR 0304525 A 20030415; CA 2452672 A 20030415; CN 03800657 A 20030415; EP 03740616 A 20030415; FR 0204705 A 20020416; FR 0301205 W 20030415; HK 05102104 A 20050311; IL 15933503 A 20030415; JP 2003585105 A 20030415; KR 20037016447 A 20030415; MX PA03011636 A 20030415; TW 92108623 A 20030415